.banner {
    position: relative;
    min-width: 1200px;
    height: 300px;
}
.banner .banner_img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    position: absolute;
    left: 0;
    top: 0;
    z-index: -1;
}
.banner .banner_box {
    box-sizing: border-box;
    width:656px;
    height:192px;
    background:rgba(239,136,108,1);
    margin: 0 auto;
    padding: 30px 41px;
    text-align: center;
    color: #ffffff;
    position: relative;
    top: 60px;
}
.banner .banner_box .banner_title {
    font-size: 24px;
}
.banner .banner_box .banner_txt {
    margin-top: 20px;
    font-size: 16px;
    line-height: 30px;
}
.main_project {
    position: relative;
    padding-bottom: 65px;
    min-width: 1200px;
    overflow: hidden;
    zoom: 1;
}
.main_project_bg {
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    z-index: -1;
    object-fit: cover;
}
.main_project .project_center {
	width: 1200px;
	margin: 0 auto;
	border: 1px solid transparent;
	box-sizing: border-box;
}

.main_project .project_center .project_list {
    margin-top: 50px;
	width: 1200px;
	height: auto;
	font-size: 0;
}

.main_project .project_center .project_list li {
	display: inline-block;
	box-sizing: border-box;
	width: 380px;
	height: 340px;
	background: white;
	margin-right: 30px;
	margin-bottom: 35px;
	padding: 30px 29px;
	text-align: center;
}

.main_project .project_center .project_list li:nth-child(3n+3) {
	margin-right: 0;
}

.main_project .project_center .project_list li .project_img {
	height: 80px;
	width: 80px;
}

.main_project .project_center .project_list li .project_title {
	font-size: 20px;
	height: 20px;
	margin-top: 20px;
	font-weight: 500;
	color: rgba(239, 136, 108, 1);
}

.main_project .project_center .project_list li .project_txt {
	margin-top: 20px;
	height: 64px;
	font-size: 14px;
	font-weight: 400;
	color: rgba(102, 102, 102, 1);
	line-height: 24px;
}

.main_project .project_center .project_list li .project_btn {
	margin-top: 25px;
	width: 150px;
	height: 48px;
	border: 1px solid rgba(153, 153, 153, 1);
	border-radius: 10px;
	outline: none;
	background-color: white;
	font-size: 16px;
	font-weight: 400;
	color: rgba(102, 102, 102, 1);
}

.main_project .project_center .project_list li:hover,
.main_trouble .trouble_center .trouble_list li:hover {
	box-shadow: 0px 10px 20px 0px rgba(180, 180, 180, 0.3);
}

.main_project .project_center .project_list li:hover .project_btn {
	border-color: #EF886C;
	color: #EF886C;
}

/* details */
.range_details_path {
    height: 55px;
    line-height: 55px;
    font-size:14px;
    font-weight:400;
    color:rgba(153,153,153,1);
}
.range_details_path a {
    color:rgba(153,153,153,1);
}
.range_details_list {
    list-style: none;
    width: 280px;
    float: left;
    background-color: white;
    padding: 20px 0;
}
.range_details_list li {
    padding: 20px 0;
}
.range_details_list li p {
    display: inline-block;
    max-width: 100%;
    font-size:18px;
    font-weight:400;
    color:rgba(51,51,51,1);
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
    padding:0 18px;
    border-left: 2px solid transparent;
    cursor: pointer;
}
.list_active {
    border-color: #EF886C !important;
    color: #EF886C !important;
}
.range_details {
    float: left;
    box-sizing: border-box;
    width: 900px;
    margin-left: 18px;
    background-color: white;
    padding: 40px 60px 160px;
    display: none;
}
.range_details .range_details_title {
    margin-left: -10px;
    color: #EF886C;
    font-size: 18px;
    margin-bottom: 5px;
}
.range_details .range_details_txt {
    color: #333333;
    font-size: 16px;
    line-height: 28px;
    margin-bottom: 20px;
}
.range_details .range_details_txt_center {
    color: #333333;
    font-size: 16px;
    line-height: 28px;
    text-indent: -1.5em;
    margin-left: 1.5em;
}